drivers/net/fddi/skfp/queue.c

Source file repositories/reference/linux-study-clean/drivers/net/fddi/skfp/queue.c

File Facts

System
Linux kernel
Corpus path
drivers/net/fddi/skfp/queue.c
Extension
.c
Size
3785 bytes
Lines
166
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

switch(class = ev->class) {
		case EVENT_ECM :		/* Entity Corordination  Man. */
			ecm(smc,(int)ev->event) ;
			break ;
		case EVENT_CFM :		/* Configuration Man. */
			cfm(smc,(int)ev->event) ;
			break ;
		case EVENT_RMT :		/* Ring Man. */
			rmt(smc,(int)ev->event) ;
			break ;
		case EVENT_SMT :
			smt_event(smc,(int)ev->event) ;
			break ;
#ifdef	CONCENTRATOR
		case 99 :
			timer_test_event(smc,(int)ev->event) ;
			break ;
#endif
		case EVENT_PCMA :		/* PHY A */
		case EVENT_PCMB :		/* PHY B */
		default :
			if (class >= EVENT_PCMA &&
			    class < EVENT_PCMA + NUMPHYS) {
				pcm(smc,class - EVENT_PCMA,(int)ev->event) ;
				break ;
			}
			SMT_PANIC(smc,SMT_E0121, SMT_E0121_MSG) ;
			return ;
		}

		if (++ev == &smc->q.ev_queue[MAX_EVENT])
			ev = smc->q.ev_queue ;

		/* Renew get: it is used in queue_events to detect overruns */
		smc->q.ev_get = ev;
	}
}

/*
 * smt_online connects to or disconnects from the ring
 * MUST be called to initiate connection establishment
 *
 *	on	0	disconnect
 *	on	1	connect
 */
u_short smt_online(struct s_smc *smc, int on)
{
	queue_event(smc,EVENT_ECM,on ? EC_CONNECT : EC_DISCONNECT) ;
	ev_dispatcher(smc) ;
	return smc->mib.fddiSMTCF_State;
}

/*
 * set SMT flag to value
 *	flag		flag name
 *	value		flag value
 * dump current flag setting
 */
#ifdef	CONCENTRATOR
void do_smt_flag(struct s_smc *smc, char *flag, int value)
{
#ifdef	DEBUG
	struct smt_debug	*deb;

	SK_UNUSED(smc) ;

#ifdef	DEBUG_BRD
	deb = &smc->debug;
#else
	deb = &debug;
#endif
	if (!strcmp(flag,"smt"))
		deb->d_smt = value ;
	else if (!strcmp(flag,"smtf"))
		deb->d_smtf = value ;
	else if (!strcmp(flag,"pcm"))
		deb->d_pcm = value ;
	else if (!strcmp(flag,"rmt"))
		deb->d_rmt = value ;
	else if (!strcmp(flag,"cfm"))
		deb->d_cfm = value ;
	else if (!strcmp(flag,"ecm"))
		deb->d_ecm = value ;
	printf("smt	%d\n",deb->d_smt) ;
	printf("smtf	%d\n",deb->d_smtf) ;
	printf("pcm	%d\n",deb->d_pcm) ;
	printf("rmt	%d\n",deb->d_rmt) ;
	printf("cfm	%d\n",deb->d_cfm) ;
	printf("ecm	%d\n",deb->d_ecm) ;
#endif	/* DEBUG */

Annotation

Implementation Notes